AceShowbiz -

Kristen Bell and Ben Schwartz are scheduled to stop by "Parks and Recreation". Both of the actors, who star together on Showtime's "House of Lies", have landed guest-starring gigs on the NBC comedy but it's unknown if they're going to appear in the same episode or not.

Bell will portray Ingrid, a snooty City Councilwoman from Eagleton. "She's Leslie's equivalent, but richer and better dressed," executive producer Michael Schur tells EW. Schur additionally assures fans that Bell's character won't come between Amy Poehler's Leslie and Adam Scott's Ben. "Do not fear. Not even the considerable charms of Kristen Bell can come between Leslie and Ben," he tells E! News.

The new mom will film her part on the sitcom after she completes filming the "Veronica Mars" movie, which is currently in production in Los Angeles. Although she's only booked for one episode slated to air in October, Schur is open to a possibility of having her back for more episodes as saying, "Once people join the world of the show we love to try to get them back. She's obviously in crazily high demand, so who knows, but I love her as an actress and a comedian and I think she's going to be great."

As for Schwartz, it won't be the first time he heads to "Parks and Recreation". The John Beard Jr. of "Arrested Development" has played Jean-Ralphio, the cunning evil genius and friend to Aziz Ansari's Tom Haverford, in multiple episodes back in 2010 and will reprise the role when he returns in the upcoming season of "Parks".

"Parks and Recreation" season 6 will debut Thursday, September 26 at 8:00 P.M. with a one-hour premiere, which will be shot in London.